more extremists groups and individuals have been attacked and taken down in pakistan than any place else in the world. they are very important partners of ours. we will have frustrations and indeed we've obviously had an important set of conversations, difficult conversations with the pakistanis since the raid on the osama bin laden compound in abbottabad, pakistan. we're committed to working through these issues. we believe it's in our national interest to do so. >> you saw "the new york times" article that detailed using cell phone conversations, what seemed pretty clear evidence, that the pakistani military, some elements of the pakistani military must have known that osama bin laden was holed up in abbottabad. does your intelligence confirm that? >> i've not seen any evidence that the pakistani leadership elements, the army, military, the intelligence or the political leadership, had foreknowledge of osama bin laden's operating in abbottabad, pakistan. >> you're saying leadership. >> i can't speak -- i don't -- i can't confirm or deny what you laid out here. i haven't seen any eviden